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⬜⬜⬜⬜⬜⬜⬜⬜⬜⬛⬛⬛⬛⬛⬛⬜⬜⬜⬜⬜⬜⬜⬜⬜
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⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬛⬜⬜⬛⬜⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜⬜⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬛⬛⬜⬛⬛⬛⬛⬛⬜⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬛⬛⬛⬛⬜⬜⬜⬛⬛⬛⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬜⬛⬛⬛⬛⬛⬛⬛⬛⬜⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬜⬜⬛⬛⬛⬛⬛⬛⬜⬜⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬜⬜⬛⬛⬜⬜⬜⬜⬛⬛⬜⬜⬜⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬜⬜⬛⬛⬛⬛⬛⬜⬜⬜⬛⬛⬛⬜⬜⬜⬜⬜⬜⬜
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⬜⬜⬜⬜⬛⬜⬜⬛⬛⬜⬜⬜⬛⬜⬜⬜⬛⬜⬛⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬛⬜⬜⬛⬛⬛⬛⬜⬛⬛⬛⬜⬛⬜⬛⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬛⬜⬜⬛⬛⬛⬜⬜⬛⬛⬜⬜⬛⬜⬛⬜⬜⬜⬜⬜
⬜⬜⬜⬜⬛⬜⬜⬛⬛⬛⬛⬜⬛⬛⬛⬜⬛⬜⬛⬜⬜⬜⬜⬜